Posted: 29/03/2016 at 11:08
Not really bulbs, but tubers, I have 3 varieties of dahlia that have been coming up for years, even when it's been a cold winter. They are Arabian Nights, Park Princess and "Pooh". I have others too that have survived winters, forgotten the names. Most people dig them up and store them but mice ate mine so I just left them and had a nice surprise. Some, like Bishop of Landaff, don't survive cold winters though.